The Epistle of the Fatimid Caliph al-Āmir (al-Hidāya al-Āmiriyya)—its Date and its Purpose

Abstract

The strife over the succession of the Fatimid Caliph al-Mustanṣir left a decisive mark on the later history of the Ismaili sect. The quarrel between the followers of his two rival sons, al-Musta'lī and Nizār, did not end with the defeat and death of the latter; his adherents, the Nizāris, formed a sect of their own, and the rulers of the Musta'lid branch had no enemies more bitter. The fortunes of the whole Ismaili movement might have taken a very different turn had the redoubtable Assassins made common cause with the Fatimids of Egypt, instead of seizing every opportunity to harm them.